Best Vegetables To Plant In July In Pennsylvania – Cool Season Succession Planting Tips

Pennsylvania gardeners know July brings warm days, making it an ideal time to start a second round of heat-loving crops. When you search for the best vegetables to plant in july in pennsylvania, you’ll find plenty of options that thrive in the summer sun. This guide covers exactly what to sow now for a bountiful fall harvest.

July is not too late to plant. In fact, it’s the perfect moment to fill gaps left by spring crops. You can still enjoy fresh produce well into autumn.

Let’s jump right into the top choices and how to grow them successfully.

Best Vegetables To Plant In July In Pennsylvania

This section covers the top performers for July planting. Each vegetable is chosen for its heat tolerance and quick maturity before frost.

Bush Beans

Bush beans are a July favorite. They germinate fast in warm soil and produce pods in about 50-60 days.

  • Plant seeds 1 inch deep, 2 inches apart.
  • Water consistently, especially during flowering.
  • Harvest every few days to encourage more pods.

These beans don’t need trellising, making them easy for any garden size.

Summer Squash And Zucchini

Summer squash loves heat. Plant seeds directly in the ground after July 1st for a late-summer harvest.

  1. Space plants 24 inches apart in rich soil.
  2. Mulch to keep roots cool and moist.
  3. Pick fruits when they are 6-8 inches long for best flavor.

Watch for squash bugs. Check undersides of leaves daily.

Cucumbers

Cucumbers grow quickly in July’s warmth. Choose slicing or pickling varieties based on your needs.

  • Sow seeds ½ inch deep, 6 inches apart.
  • Provide a trellis for better air flow and straighter fruits.
  • Harvest regularly to keep plants productive.

Bitter cucumbers often result from uneven watering. Keep soil evenly moist.

Sweet Corn

July is prime time for a second corn planting. Early-maturing varieties work best for fall harvest.

  • Plant in blocks, not single rows, for good pollination.
  • Space seeds 8 inches apart in rows 30 inches apart.
  • Water deeply once a week.

Corn needs full sun and fertile soil. Add compost before planting.

Peppers (Transplants)

If you start peppers indoors early, July is the time to set out transplants. They love the heat.

  1. Harden off seedlings for a week before planting.
  2. Space plants 18 inches apart in warm soil.
  3. Use black plastic mulch to warm the soil further.

Peppers may take 60-90 days to mature, so choose early varieties like ‘Early Jalapeno’ or ‘Sweet Banana’.

Tomatoes (Transplants)

You can still plant tomato transplants in early July for a fall crop. Choose determinate or early-maturing types.

  • Plant deep, burying part of the stem for strong roots.
  • Stake or cage immediately to avoid breakage.
  • Water at the base to prevent disease.

Look for varieties like ‘Celebrity’ or ‘Early Girl’ that ripen in 60-70 days.

Leafy Greens: Lettuce, Spinach, And Kale

July heat can be tough on greens, but you can still plant them with care. Choose heat-tolerant varieties.

  • Sow seeds in partial shade if possible.
  • Use shade cloth to keep soil cool.
  • Water in the morning to reduce evaporation.

Lettuce bolts quickly in heat, so plant in succession every two weeks. Kale is more forgiving and tastes sweeter after light frost.

Carrots

Carrots planted in July will mature in fall. The cooler weather improves their sweetness.

  1. Prepare loose, sandy soil free of rocks.
  2. Sow seeds ¼ inch deep, 1 inch apart.
  3. Thin seedlings to 2 inches apart when they are 2 inches tall.

Keep soil moist until seeds germinate, which can take up to 3 weeks.

Beets

Beets are a dual-purpose crop: you get both roots and greens. They grow well in July.

  • Soak seeds overnight to speed germination.
  • Plant 1 inch deep, 2 inches apart.
  • Harvest when roots are 1-2 inches across.

Beets prefer consistent moisture. Mulch helps retain water.

Radishes

Radishes are the fastest crop you can plant in July. Some varieties mature in just 25 days.

  • Sow seeds ½ inch deep, 1 inch apart.
  • Thin to 2 inches apart for larger roots.
  • Plant every 10 days for continuous harvest.

Radishes can become pithy in extreme heat, so provide afternoon shade if possible.

Turnips

Turnips are another quick root crop. Both the roots and greens are edible.

  1. Plant seeds ½ inch deep, 2 inches apart.
  2. Thin to 4 inches apart for larger roots.
  3. Harvest greens when they are 4-6 inches tall.

Turnips grow best in cool fall weather, so July planting sets them up perfectly.

Swiss Chard

Swiss chard is heat-tolerant and colorful. It produces leaves all summer and into fall.

  • Sow seeds 1 inch deep, 6 inches apart.
  • Harvest outer leaves when they are 6-8 inches long.
  • Water deeply once a week.

Chard can survive light frosts, extending your harvest season.

Broccoli And Cauliflower (Transplants)

These cool-season crops can be planted in July for fall harvest. Start transplants indoors in June or buy from a nursery.

  1. Space plants 18 inches apart in fertile soil.
  2. Water consistently to prevent bolting.
  3. Cover with row covers to protect from cabbage worms.

Broccoli heads form best when temperatures stay below 80°F. Choose varieties like ‘Green Comet’ or ‘Snow Crown’.

Kohlrabi

Kohlrabi is a fast-growing brassica that thrives in fall weather. Plant seeds directly in July.

  • Sow seeds ¼ inch deep, 4 inches apart.
  • Thin to 6 inches apart for bulb development.
  • Harvest when bulbs are 2-3 inches wide.

Kohlrabi has a mild, sweet flavor similar to broccoli stems.

Soil Preparation Tips For July Planting

Good soil prep makes a big difference in July. The ground is warm, but it may be dry or compacted.

Amend With Compost

Add 1-2 inches of compost to your beds. This improves moisture retention and adds nutrients.

  • Work compost into the top 6 inches of soil.
  • Use well-aged compost to avoid burning roots.

Water Deeply Before Planting

Water the soil thoroughly a day before planting. This ensures seeds and transplants have moisture right away.

  • Soak the soil to a depth of 6 inches.
  • Check moisture with your finger—soil should be damp but not soggy.

Use Mulch To Keep Soil Cool

Mulch is essential in July. It reduces evaporation and keeps roots cool.

  • Apply 2-3 inches of straw, grass clippings, or shredded leaves.
  • Keep mulch away from plant stems to prevent rot.

Watering Strategies For July Gardens

July heat means plants need more water. Inconsistent watering leads to poor growth and bitter flavors.

Water In The Morning

Morning watering reduces evaporation and gives plants time to dry before night. This prevents fungal diseases.

  • Water at the base of plants, not on leaves.
  • Use soaker hoses or drip irrigation for efficiency.

Check Soil Moisture Daily

Stick your finger 2 inches into the soil. If it feels dry, it’s time to water.

  • Vegetables need about 1 inch of water per week.
  • Increase to 2 inches during heat waves.

Group Plants By Water Needs

Place thirsty plants like cucumbers and squash together. Drought-tolerant ones like beans and peppers can be in another bed.

  • This makes watering more efficient.
  • It also prevents overwatering some crops.

Pest And Disease Management In July

July brings pests like aphids, squash bugs, and cucumber beetles. Stay ahead of problems with these tips.

Inspect Plants Regularly

Check leaves, stems, and soil every few days. Early detection makes control easier.

  • Look under leaves for eggs or small insects.
  • Remove pests by hand or spray with neem oil.

Use Row Covers

Floating row covers protect young plants from insects. Remove them when flowers appear for pollination.

  • Use lightweight covers for heat-tolerant crops.
  • Secure edges with soil or rocks.

Rotate Crops

Avoid planting the same family in the same spot. This reduces soil-borne diseases.

  • Follow beans with leafy greens.
  • Follow tomatoes with root crops.

Succession Planting For Continuous Harvest

Succession planting means sowing new seeds every few weeks. This keeps your garden producing all season.

Plan Your Planting Schedule

Write down when you plant each crop. Then mark when to plant the next batch.

  • For radishes, plant every 10 days.
  • For lettuce, plant every 14 days.
  • For beans, plant every 3 weeks.

Fill Gaps As You Harvest

When you pull out spent plants, immediately sow something new. This maximizes space.

  • After spring peas, plant bush beans.
  • After early lettuce, plant carrots.

Fall Harvest Timing For July Plantings

Knowing your first frost date helps you plan. In Pennsylvania, first frost ranges from late September to mid-October, depending on your region.

Check Your Hardiness Zone

Pennsylvania spans zones 5a to 7b. Use this to calculate planting dates.

  • Zone 5: First frost around September 30.
  • Zone 6: First frost around October 15.
  • Zone 7: First frost around October 30.

Count Back From Frost

Look at the “days to maturity” on seed packets. Count back from your first frost date to know when to plant.

  • For 60-day beans in zone 6, plant by August 15.
  • For 50-day squash in zone 5, plant by August 10.

Choose Quick-Maturing Varieties

When planting in July, pick varieties with shorter maturity times. This ensures you harvest before frost.

  • ‘Bush Blue Lake’ beans: 55 days.
  • ‘Early Wonder’ beets: 50 days.
  • ‘Cherry Belle’ radishes: 25 days.

Common Mistakes To Avoid In July Planting

Even experienced gardeners make errors in summer. Here’s what to watch out for.

Planting Too Deep

Seeds need to be at the right depth. Too deep, and they may not germinate in hot soil.

  • Follow seed packet instructions exactly.
  • For small seeds, barely cover them with soil.

Skipping Shade For Cool-Season Crops

Greens like lettuce and spinach need protection from intense afternoon sun.

  • Plant them on the east side of taller crops.
  • Use shade cloth that blocks 30-50% of light.

Overcrowding

Thin seedlings to recommended spacing. Crowded plants compete for water and nutrients.

  • Use scissors to snip extra seedlings at soil level.
  • Don’t pull them out, as this disturbs roots.

Frequently Asked Questions

Can I Plant Tomatoes In July In Pennsylvania?

Yes, you can plant tomato transplants in early July. Choose determinate or early-maturing varieties like ‘Early Girl’ or ‘Celebrity’. They will produce fruit before the first frost.

What Vegetables Grow Fast In July?

Radishes, bush beans, and leaf lettuce grow quickly. Radishes mature in 25 days, beans in 50-60 days, and lettuce in 30-40 days.

Is It Too Late To Plant Cucumbers In July?

No, cucumbers planted in early July will produce by late August. Choose quick-maturing varieties like ‘Marketmore’ or ‘Suyo Long’.

Should I Use Fertilizer For July Plantings?

Yes, but use a balanced fertilizer with equal parts nitrogen, phosphorus, and potassium. Apply at planting time and again when plants are half-grown.

How Do I Protect July Plantings From Heat?

Use mulch to keep soil cool, water in the morning, and provide afternoon shade for sensitive crops. Shade cloth works well for leafy greens.

Final Thoughts On July Planting In Pennsylvania

July is a productive month in Pennsylvania gardens. With the right choices, you can harvest well into autumn.

Focus on heat-loving crops like beans, squash, and cucumbers. Don’t forget quick-growing radishes and greens for continuous harvest.

Prepare your soil well, water consistently, and watch for pests. Your garden will reward you with fresh vegetables for months to come.

Now get out there and plant. The warm soil is waiting for your seeds.